package lab02.test37;

/**
 * Created by lenovo on 2017/11/22.
 */
public class StudentDemo {
    public static void main(String args[])
    {
        Undergraduate st1 = new Undergraduate("张三",50,70,60);
        st1.Display();
        Graduate st2=new Graduate("李四",70,80,90);
        st2.Display();
    }
}
